Three-dimensional object and method for forming same

Abstract

Provided is a three-dimensional object formation method including: a first step of forming a film by delivering a first liquid containing at least water and a hydrogel precursor: and a second step of curing the film formed in the first step, wherein the first step and the second step are repeated a plurality of times.

1 . A three-dimensional object formation method, comprising:
 forming a film by delivering a first liquid that comprises water and a hydrogel precursor; and   curing the film,   wherein the forming and the curing are repeated a plurality of times.   
     
     
         2 . The three-dimensional object formation method according to  claim 1 , further comprising:
 forming a film by delivering a second liquid that comprises a curable material to a position different from a position to which the first liquid is delivered.   
     
     
         3 . The three-dimensional object formation method according to  claim 1 , wherein the hydrogel precursor comprises a water-dispersible mineral and a polymerizable monomer. 
     
     
         4 . The three-dimensional object formation method according to  claim 3 , wherein the water-dispersible mineral is a water-swellable layered clay mineral. 
     
     
         5 . The three-dimensional object formation method according to  claim 2 , further comprising:
 detaching a portion made of a hydrogel produced from the hydrogel precursor, and a portion made of a polymer produced from the curable material from each other.   
     
     
         6 . The three-dimensional object formation method according to  claim 5 , wherein a rubber hardness of the portion made of the hydrogel is from 6 to 60. 
     
     
         7 . The three-dimensional object formation method according to  claim 1 , wherein a method for delivering the liquid is any of an ink jetting method and a dispenser method. 
     
     
         8 . The three-dimensional object formation method according to  claim 5 , wherein the portion made of the hydrogel and the portion made of the polymer are detached from each other by drying shrinkage. 
     
     
         9 . A three-dimensional object formation liquid set, comprising:
 a first liquid that comprises water and a hydrogel precursor; and   a second liquid that comprises a curable material.   
     
     
         10 . A three-dimensional object, comprising:
 a hydrogel that comprises water, a polymer, and a mineral.   
     
     
         11 . The three-dimensional object according to  claim 10 , wherein a rubber hardness of a portion made of the hydrogel is from 6 to 60. 
     
     
         12 . The three-dimensional object according to  claim 10 , wherein an inclusion that has either a different color or a different hardness from that of the three-dimensional object is arranged at an intended position in the three-dimensional object. 
     
     
         13 . The three-dimensional object according to  claim 10 , comprising:
 a moisture-retaining coating.   
     
     
         14 . The three-dimensional object according to  claim 10 , comprising:
 a water-soluble organic medium.   
     
     
         15 . The three-dimensional object according to  claim 10 , wherein the three-dimensional object is an organ model for medical procedures training.